+
+int get_partition_info(block_dev_desc_t *dev_desc, int part
+ , disk_partition_t *info)
+{
+#if defined(CONFIG_CMD_IDE) || \
+ defined(CONFIG_CMD_SATA) || \
+ defined(CONFIG_CMD_SCSI) || \
+ defined(CONFIG_CMD_USB) || \
+ defined(CONFIG_MMC) || \
+ defined(CONFIG_SYSTEMACE)
+
+ switch (dev_desc->part_type) {
+#ifdef CONFIG_MAC_PARTITION
+ case PART_TYPE_MAC:
+ if (get_partition_info_mac(dev_desc, part, info) == 0) {
+ PRINTF("## Valid MAC partition found ##\n");
+ return 0;
+ }
+ break;
+#endif
+
+#ifdef CONFIG_DOS_PARTITION
+ case PART_TYPE_DOS:
+ if (get_partition_info_dos(dev_desc, part, info) == 0) {
+ PRINTF("## Valid DOS partition found ##\n");
+ return 0;
+ }
+ break;
+#endif
+
+#ifdef CONFIG_ISO_PARTITION
+ case PART_TYPE_ISO:
+ if (get_partition_info_iso(dev_desc, part, info) == 0) {
+ PRINTF("## Valid ISO boot partition found ##\n");
+ return 0;
+ }
+ break;
+#endif
+
+#ifdef CONFIG_AMIGA_PARTITION
+ case PART_TYPE_AMIGA:
+ if (get_partition_info_amiga(dev_desc, part, info) == 0) {
+ PRINTF("## Valid Amiga partition found ##\n");
+ return 0;
+ }
+ break;
+#endif
+
+#ifdef CONFIG_EFI_PARTITION
+ case PART_TYPE_EFI:
+ if (get_partition_info_efi(dev_desc, part, info) == 0) {
+ PRINTF("## Valid EFI partition found ##\n");
+ return 0;
+ }
+ break;
+#endif
+ default:
+ break;
+ }
+#endif
+
+ return -1;
+}
+
+int get_device_and_partition(const char *ifname, const char *dev_str,
+ block_dev_desc_t **dev_desc,
+ disk_partition_t *info)
+{
+ int ret;
+ char *ep;
+ int dev;
+ block_dev_desc_t *desc;
+ int part = 0;
+ char *part_str;
+
+ if (dev_str)
+ dev = simple_strtoul(dev_str, &ep, 16);
+
+ if (!dev_str || (dev_str == ep)) {
+ dev_str = getenv("bootdevice");
+ if (dev_str)
+ dev = simple_strtoul(dev_str, &ep, 16);
+ if (!dev_str || (dev_str == ep))
+ goto err;
+ }
+
+ desc = get_dev(ifname, dev);
+ if (!desc || (desc->type == DEV_TYPE_UNKNOWN))
+ goto err;
+
+ if (desc->part_type == PART_TYPE_UNKNOWN) {
+ /* disk doesn't use partition table */
+ if (!desc->lba) {
+ printf("**Bad disk size - %s %d:0 **\n", ifname, dev);
+ return -1;
+ }
+ info->start = 0;
+ info->size = desc->lba;
+ info->blksz = desc->blksz;
+
+ *dev_desc = desc;
+ return 0;
+ }
+
+ part_str = strchr(dev_str, ':');
+ if (part_str)
+ part = (int)simple_strtoul(++part_str, NULL, 16);
+
+ ret = get_partition_info(desc, part, info);
+ if (ret) {
+ printf("** Invalid partition %d, use `dev[:part]' **\n", part);
+ return -1;
+ }
+ if (strncmp((char *)info->type, BOOT_PART_TYPE, sizeof(info->type)) != 0) {
+ printf("** Invalid partition type \"%.32s\""
+ " (expect \"" BOOT_PART_TYPE "\")\n",
+ info->type);
+ return -1;
+ }
+
+ *dev_desc = desc;
+ return part;
+
+err:
+ puts("** Invalid boot device, use `dev[:part]' **\n");
+ return -1;
+}